Hydraulic dredge.



No. 700,-406. Patented may 20, |902.

0. L. cumul-:0. HYDRAULIC DREDGE.

(Application led Aug. 80, 1901.)

2 Sheets-Sheet I. I,

(N0 Model.)

No. 700,406. Patented May 20, |902.

G. L. CUDNER.

HYDRAULIC DREDGE.

(Application filed Aug. 30, 1901.) (Nomaden.) 2 sheets-Sheet 2.

UNITEDv STATES PATENT OFFICE.

GUsTAvIs L. etienne, oF-Nnw YORK, N. Y.-

HYDRAULic DRI-:DGL

SPECIFICATION forming" part of Letters Patent No. 700,406, dated. May 20, 1902.

Original application iiledJnne' 5, 1001, Serial No. 63,202.

A 'No. 73,802.

To a/ZZ whom it may' concern:

Beit known that I, GUSTAVISL. `CUDNER, a citizen of the United States, and a resident of the borough of Manhattan, in the city and State of New York,have invented a new and useful Improvement in Hydraulic Dredgers, Excavators, and Elevators, of which the following is a specification.

My invention consists in an improvement in hydraulic dredgers, excavators, and elevators, an'dvhas for its object to provide an apparatus which may be readily adj usted to different heights.

A further object is to providecertain improvements vin the construction, form, and arrangement of the several parts of the apparatus, so as to produce an effective apparatus capable of rapidly performingr its work.

A still further. object is to provide a dis'- charge-boxl surrounding the upper end of the stand pipe of the apparatus, the said discharge-box being provided with a spout'lead-` ing therefrom at a point below the outlet end of the stand-pipefor preventingv the return of the discharged material from the dischargebox back into the stand-pipe after it has once been discharged therefrom.

My present invention is a division of my application, Serial No. 63,202, entitled Hydraulic dredger, excavator, 'and elevator,

filed' J une 5,l 1901, and is vdirected more par.

a head-sectionl, an injector-section 2, and i one or more intermediate sections 3. The stand-pipe is provided with an open bottom for the reception of the material to bev elevated and an open top for discharging the material. A closed discharge-box 4 lis secured to the head .1 of the stand-pipe, which discharge` Divided and this application filed August 30, 1901 Serial (No model.) l,

lbox is4 provided with a discharge-spout 5 for vconveying the'material to'any desired point. The open -top of. the stand-pipe isI projected into the interior of the discharge-box 4 a d istance above the bottom thereof, preferably by Aproviding a supplemental tubularsection 6, having a flange 7 interposed between the ianges of the discharge-box 4 and `the headsection l of the stand-pipe. The spout 5 leads outlet lo the end of the stand-pipe, so' as t-o be'discharged from the stand-pipe.v A nozthe open bottom of the stand-pipe, which nozzle-chest is provided with a downwardly-extended nozzle 9 for disintegrating the mate? rial and an upwardly-projecting nozzle 1 0-for drawing the material into theinterior ofthe stand -pipe and forcing it uwardly therethrough into the discharge-box. Two hydraulic feed-pipes'll and 12 are connected at their lower ends to the nozzle-chest and are spaced at their upper ends from the head-section 1 of the -stand -pipe. These hydraulic `feedpipes. 11 and 12 are connected with a suitpipes 14 15. Cocks 16 17 may be provided for regulating the ilow of water from the hying power-'to operate. the said hydraulic ,pump 13. f

'I he scow which the apparatus. hereinabovb described is deand approved construction. The stand-pipe and its connected parts-are located exterior to the scow and may be adjusted for bringing the lower end of the stand-pipe into the proper lows A suitable framework 20 is mounted at vided with a plurality of guide-brackets 21, which embrace the'hydraulic feed-pipes 11 and 12 upon opposite sides'of the stand-pipe. These brackets are preferably` arranged in pairs, as shown, so as to obtain an extended bearing for vthe feed pipes, and the said brackets are so arranged that they will permit the stand-pipe and its connected parts to insure the removal of all material which may.`

zie-chest 8 is spaced ashort distance below.

able hydraulic pump 13 through iiexible hoseis represented as carrying,

position for dredging and excavating as folfrom the discharge-box 4 at a point belowthe draulic pump 13 to the nozzle-chestS. A suitable boiler 18 is employed for furnishnoted by 19, and it may be of anywell-known one end of the scow, which frameworkis prolooA have a considerable range of vertical adjustment to renderthe apparatus applicable `for use on bottoms at various distances fromA the surface of the water. A counterbalanceweight 22 is provided with a chain 23, which passes upwardly4 and over a sprocket-wheel 24, fixed to al shaft 25, mounted in the top of the framework 20, and from thence passes over an idler-pulley 26 and-downward, where its other end is connected to a rearwardlyextended bracket 27, carried by the standpipe.

To permit the apparatusto be easily raised and lowered, I provide a sprocket-chain 28, which passes over a large sprocket-Wheel 29, fixed to the shaft 25, and around a small sprocket-wheel 30, fixed to a shaft 31, mounted on the supporting-frame 20. This shaft 3l is provided with an operating crank-liandle 32, and is also provided with a ratchet-33,.

engaged by a pawl 34C for holding the'apparatus in any of its vertical adjustments.

The flexible hose-pipes 14 and 15 are made of sufficient length to permit-the apparatus to be raised and lowered to the limits of its movement without interfering with the connection between the hydraulic pump and the feed-pipes 11 and 12.

lYhat I claim is- 1. In a dredger, 'excavator and elevator, a stand-pipe comprising ahead-section, an injector-section, an intermediate section, and a discharge-box having an outlet therein, and

a supplemental tubular section projected above the outletin the discharge-box, substantially as set forth.

2. A dredger, excavator and elevator coinprising a stand-pipe, a nozzle-chest, two hydraulic feed-pipes communicating at their lower ends with the nozzle-chest and 'rigidly spaced from the stand-pipe at their upper ends, a suitable support and means for adjustablysecuring the stand-pipe to the support comprising guide-brackets through which the feed-pipes are fitted to slide, substantially as set forth.

3, In combination, a dredging, excavating and elevating apparatus and means for adjusting it comprising a suitable framework, a cross-shaft mounted therein, a sprocketwheel fixed on the shaft, a counterbalanceweight, a chain passing over the said sprocket and connecting the counterbalapce-weight with the apparatus, a large sprocket fixed on said cross-shaft, a small sprocket having an operating crank-handle and a sprocket-chain connecting the last-named two sprockets, substantially as set forth. l

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two Witnesses, this 29th day of August, 1901. r

` V GUSTAVIS L. CUDNER. Witnesses:

FREDK. I-IAYNES, HENRY THIEME. 

